Linotype-machine.



PATENTBD APR. 26, 1904.

W. H. RAND-ALL. 'LINOTYPB' M'AGHINE.

LYPLIUATIOK FILED MAY 19, 1903.

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No. 758,103., v PATEN'TED APR. 26, 1904.

W; H. RANDALL.

LIN OTYPE MACHINE.

APPIIOATION FILED MAY 19, 1903.

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Patented April 26, 1904. i

UNITED STATES ATENT OFF ice.

WVILLIAM HENRY RANDALL, OF BROOKLYN, NEW YORK, ASSIGNOR TO MERGENTHALER LINOTYPE COMPANY, A CORPORATION OF NEW YORK.

LINOTYPE-IVIACHINE.

SPECIFICATION forming part of Letters Patent NO. 758,103, dated April 26, 1904;. Application filed May 19. 1903. Serial No. 157,780. lNo model.)-

1'0 0, whom, it may concern:

Be it known that I, XVILLIAM HENRY RAN- DALL, of Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement in Linotype-Machines, of which the following is a specification.

This invention relates to linotype-machines of the character represented in Letters Patent of the United States No. 436,532, wherein the slugs or linotypes are cast in a slotted mold mounted in an intermittently-rotated wheel, whereby the mold is presentedfirst in operative relation to the composed line of matrices and thereafter in front of an ejector-blade that the slug or linotype cast in the mold may be ejected. In this class of machines it is customary to provide the disk with peripheral teeth and drive the same by a pinion engaging therewith. It is a common. practice toprovide the disk with two or more molds differing in size, so that by rotating the disk and changing its relation to the driving-pinion one mold or another many be brought to the operative position. Heretofore it has oeen the general practice to fix the driving pinion on its shaft and to mount the mold wheel or disk on a horizontal slide, so that the disk can be moved forward out of engagement with the pinion to permit rotary adjustment. This adjustment necessitated the opening of the front of the machine and involved considerable time and labor.

The object of the present invention is to fa cilitate the rotary adjustment of the moldcarrying disk in order to bring one mold or another into action and this without the necessity of opening the frame or requiring the operator to leave his place at the keyboard.

To this end the invention consists in connecting 'the driving-pinion with its shaft through the medium of a coupling or clutch and so arranging the parts that the pinion may be instantly disengaged and set free to permit the free rotation of the mold-disk.

It further consists in so arranging the parts that when the pinion is disengaged from the driving devices it will retain its engagement with the disk and serve as a means for tu ruing the same by hand.

It also consists in providing the pinion, arranged as above, with a handle or turning device through which it may be conveniently rotated to effect the adjustment of the disk.

' In the accompanying drawings I have illustrated my invention in its preferred form as applied to and commercially used in the Mergenthaler linotype-machine. I

Referring to the drawings, Figure 1 is a front elevation of the mold wheel or disk and its driving-pinion. Fig. 2 is a top'plan view of the same, the parts being in operative position. Fig. 3 is a similar view showing the pinion disengaged from the driving devices. Fig. 4 is a cross-section through the pinion on the correspond ingly-numbered line of the preceding figures.

Referring to the drawings, A represents the vertical wheel or disk, containing, as usual, on opposite sides of the center two slotted molds B and B.

O represents the intermittently rotated driving-pinion adapted to engage teeth formed on the peripheryof the mold-wheel. The pinion is mounted on the forward end of a horizontal d1-iving sl1aft D and receives motion therefrom through an arm E, which is pivoted or otherwise secured tothe shaft and provided with a driving-stud e, which enters a hole in the pinion. The pinion is arranged to slide forward and backward, and the parts are so proportioned that it may move forward sufficiently to disengage the drivingstud a while remaining in engagement with the disk, as shown in Fig. 3. It will be observed that when the pinion is' thus disengaged it is left free to revolve independently of the driving-shaft, so that the mold-wheel may be turned to bring one mold or the other to the casting position. (Indicated by the dotted line in Fig. 1.) The .pinion is preferably provided with a knob or .handle 9, byv means of which the operator may conveniently rotate it when uncoupled, and thereby turn the disk to bring one mold or the other into action, as required, and this without the necessity of disturbing other parts of the machine or ofleaving his seat at the keyboard. The pinion may be mounted directly on the end of the driving shaft; but it is preferably mounted, as shown, on a hub or sleeve (3, formed on the front of the driving-arm E. In order to maintain the connection of the parts in the driving position, I mount within the handle of the pinion a spiral spring it, encircling a stud or screw 2', seated in the front end of the shaft. The spring bears at the front beneath a head on this screw and at the rear against a shoulder on the pinion, so that it tends to push the pinion backward and keep it in engagement with the driving-stud.

In order to effect a change of molds, it is only necessary for the operator to pull the handle forward until the pinion is unlocked and thereafter turn the handle until the disk has made a half-revolution. The pinion being then released, the spring will move it rearward until it again locks with the drivingstud. I commonly proportion the parts so that two revolutions of the pinion will effect a half-revolution of the disk. This is advantageous in that it is unnecessary forthe operator to exercise any special care in adjusting the parts. When the pinion reaches the position to engage the stud, it is certain that the mold is in operative relation to the other parts.

The driving-arm and stud constitute, it will be seen, a form of coupling or clutch between the shaft and the pinion.

While it is preferable to retain the details shown, they may be modified at will, provided only they are adapted to permit the convenient release of the pinion from the drivingshaft. There are many forms of interlocking clutch devices suitable for the purpose known the pinion, with its handle or turning device,

constitute the manually-operated means for effecting the rotary adjustment of the moldcarrier wheel which is disconnected from the power-driven devices.

Having described my invention, what I claim is 1. In a linotype-machine, a rotatable disk provided with a plurality of'molds, in combination with an actuating-pinion, a shaft for driving the pinion, and intermediate clutch devices whereby the pinion may be released to permit the rotation of the disk independently of the shaft.

2. In a linotype-machine, a rotary disk provided with a plurality of molds, a drivingshaft, a pinion engaging the disk and movable axially, and coupling devices between the pinion and the shaft.

3. Inalinot pe-machine, a mold-disk ad apted to carry a plurality of molds, a pinion engaging the disk and arranged to move axially, a driving-shaft, and a coupling device imparting motion from the shaft to the pinion, said parts adapted and arranged to permit the uncoupling of the pinion while it remains in engagement with the disk.

4. In a linotype-machine, a mold-carrying disk, a driving-pinion engaging the disk and provided with means for turning it manually, and power-driven devices for rotating the pinion, adapted to be disengaged to release the pinion while it remains in engagement with the disk.

5. In a linotype-machine, the mold-carrying disk, the driving shaft, the sliding pinion, coupling devices between the pinion and shaft, and a spring to maintain the parts in operative connection.

6. In a linoty pe-machine, a rotary disk provided with a plurality of molds, in combination with manual devices for turning the same, to bring one mold or the other into action, and power driven devices adapted to be thrown into and out of connection with said manual devices.

7 In a linotype-machine, the combination operated means for rotating said carrier, a

clutch by means of which solely said carrier and its rotating means may be connected and disconnected, whereby the mold-carrier may be quickly adjusted to bring any desired mold into operative relation with the metal-inject ing mechanism, and means for adjusting the mold-carrier when disconnected.

9. In a linotype-machine, the combination with a rotatable mold-carrier provided with a plurality of molds of different sizes, of poweroperated means for rotating said carrier and a clutch by means of which solely said carrier and its rotating means may be connected and disconnected, whereby the mold-carrier may be quickly adjusted to bring any desired mold into operative relation with the metal-injecting mechanism.

10. In a linotype-machine, the combination with a rotatable mold-carrier, of a drivingpinion therefor, a spring-operated clutch normally connecting said pinion with power-operated mechanism, and a handle for throwing said clutch out of operation.

In testimony whereof I hereunto set my hand, this 11th day of May, 1903, in the presence of two attesting witnesses.

WILLIAM HENRY RANDALL.

Witnesses:

L. B. MoRnHoUsn, O. E. GRANT. 

